| 摘要 |
<p>A battery pack includes a plurality of bare cells, a first case portion covering one side of the bare cells, and a second case portion covering an opposite side of the bare cells and fastened to the first case portion. The first case portion may include fastening hooks formed on a sidewall of the first case portion, and the second case portion may include fastening grooves formed on a sidewall of the second case portion, the fastening grooves to be fastened to the fastening hooks, the fastening hooks including first fastening hooks protruding on a first region of the sidewall of the first case portion, the first fastening hooks being spaced apart from the plurality of bare cells in a first direction of the first case portion, the fastening hooks further including second fastening hooks protruding in a second direction opposite to the first direction, the first fastening hooks and the second fastening hooks being alternately arranged.
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